The three(3) potential challenges or important points to consider when conducting a data collection are described below.
Data collection is a detailed process that is used in gathering and measuring information from a selected source by a researcher.
To perform a data collection, the following important points are to be considered :
- Cost of data: before data collection, a researcher should check if the data that is being considered is affordable. this is done to avoid quitting.
- Accuracy: there are different types of data collection techniques these include: questionnaires, interviews, focus groups, observation and case studies. the data collection technique that should be chosen should provide the most accurate results.
- Validity of data: if your findings will truly represent the phenomenon you are claiming to measure, then the data collected is valid.
Therefore the above important points needs to be considered during data collection.
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I hope this gives you a clue.
Cyanide, raw sewage, petroleum from shipping accidents, and detergents are all examples of Water pollution.
Water pollution is the contamination of water bodies by substances like Cyanide, raw sewage, petroleum from shipping accidents, and detergents This makes water unfit for drinking, cooking, cleaning, and other purposes. It may provide an environment suitable for growth of bacteria, algae bloom and other parasites which even destroys the life of animals residing in the water body like fishes.
All other forms of pollution eventually make their way to water and disturb the pH of water. Biochemical Oxygen demand (BOD) is the attribute which measures the pollution in water body at surface level.
Hence,Cyanide, raw sewage, petroleum from shipping accidents, and detergents are all examples of Water pollution.
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It will pick up the nail, because the power of the magnet will go through the paperclip, into the nail
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The answer is A.
Engels edited Karl Marx's Das kapital. Engels did not edit Das kapital he just funded Marx financially from him to do it on his own. Then it was after that period Marx died and Engels edited the second and third volume.
Engels met with Marxist theory and Karl Marx in the year 1845 and they published the condition of the working class.
Engel coauthored with Marx in the communist manifesto.
